3991: The area known as 'Golan Heights' sometimes appears in the news in the context of the events related to
(a) Central Asia
(b) Middle East
(c) South-East Asia
(d) Central Africa
3992: It has been found recently that the acidity of the soil increases because of:
(a) Leaching away of bases
(b) Increased use of ammonia
(c) Increased use of urea
(d) Increased use of rock phosphate
3993: Sir J. C. Bose was a great scientist because he showed the:
(a) Sensitivity in plants
(b) Pigments in plants
(c) Growth in plants
(d) Relations between plants and animals
3994: Consider the following statements:
1. A geostationary satellite is at an approximate height of 10,000 km.
2. FM transmission of music is of very good quality because the atmospheric or man-made noises which are generally frequency variations can do little harm.
Which of the following statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 or 2
3995: Assertion (A): Muhammad bin Tughlaq issued a new gold coin which was called Dinar by Ibn Batutah.
Reason (R) : Muhammad bin Tughlaq wanted to issue token currency in gold coins to Promote trade with West Asian and North African countries.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true